C++ API to communicate with etcd (json or grpc, doesn't matter)

I need a fully tested C++ library to communicate with etcd with all the necessary functionality (watch, put, get, etc): [login to view URL] There's a library out there, but it doesn't work properly. [login to view URL] I spent hours to get it to compile properly with a version of grpc that I got from the repository and compiled on my own, and then while it works fine for get and set, the tests don't fully pass. There's a problem with watch function related to grpc. I need that functionality. The job is to fix it such that: - it works on Ubuntu 18.04. - the tests fully pass and all the functions in the library work Notes: I'll deliver a modified version of the library that works/links with your own compiled version of grpc from the grpc repository. Etcd is a distributed key/value store. For your work, you can simply install it on your Ubuntu with `sudo apt-get install etcd`, and then communicate with it through port 2379.